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Foundations of Sleep

Welcome to Sleep Disorders

How Sleep Works

Recognizing a Possible Sleep Disorder

Foundations Knowledge Check

Common Sleep Disorders

Insomnia

Sleep Apnea

Narcolepsy and Excessive Daytime Sleepiness

Restless Legs Syndrome and Sleep-Related Movement Disorders

Common Disorders Knowledge Check

Timing, Behaviors, and Unusual Sleep Events

Circadian Rhythm Sleep-Wake Disorders

Parasomnias and Unusual Sleep Experiences

Sleep, Substances, and Daily Habits

Timing and Behavior Knowledge Check

Diagnosis, Treatment, and Safety

How Sleep Disorders Are Diagnosed

Treatment Approaches

When to Seek Professional Help

Final Knowledge Check

Build Your Sleep-Health Action Plan

A beginner-friendly course explaining common sleep disorders, their symptoms, risk factors, diagnosis, treatment approaches, and when professional assessment is important. Includes practical activities, knowledge checks, and authoritative sleep-health video resources.

Learn how common sleep disorders affect sleep, daytime functioning, and health—and how clinicians approach recognition, diagnosis, and treatment.

Sleep Disorders: Understanding Causes, Symptoms & Treatments

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